Fitbit Charge 2 vs. Huawei Watch 2 vs. Garmin 645 Music vs. Fitbit Flex vs. HTC re Grip

 
Charge 2
Watch 2
645 Music
Flex
re Grip
 FitbitCharge 2Remove Buy NowHuaweiWatch 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$150$350$450$100$199
Release20162017201820132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours7 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 480240 x 240NA160 x 32
Sizen/a1.38 inches1.2 inchesNA1.8 inches
Touchn/aNA
TypeOLEDP-OLEDMIPLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP685 ATM1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2NANA
Apps
Music

All Wearables